wxPython/src/helpers.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        helpers.cpp
   3 // Purpose:     Helper functions/classes for the wxPython extension module
   4 //
   5 // Author:      Robin Dunn
   6 //
   7 // Created:     1-July-1997
   8 // RCS-ID:      $Id$
   9 // Copyright:   (c) 1998 by Total Control Software
  10 // Licence:     wxWindows license
  11 /////////////////////////////////////////////////////////////////////////////
  12
  13
  14 #undef DEBUG
  15 #include <Python.h>
  16 #include "wx/wxPython/wxPython_int.h"
  17 #include "wx/wxPython/pyistream.h"
  18
  19 #ifdef __WXMSW__
  20 #include <wx/msw/private.h>
  21 #include <wx/msw/winundef.h>
  22 #include <wx/msw/msvcrt.h>
  23 #endif
  24
  25 #ifdef __WXGTK__
  26 #include <gtk/gtk.h>
  27 #include <gdk/gdkprivate.h>
  28 #include <wx/gtk/win_gtk.h>
  29 #endif
  30
  31 #include <wx/clipbrd.h>
  32 #include <wx/mimetype.h>
  33 #include <wx/image.h>
  34
  35 //----------------------------------------------------------------------
  36
  37 #if PYTHON_API_VERSION <= 1007 && wxUSE_UNICODE
  38 #error Python must support Unicode to use wxWindows Unicode
  39 #endif
  40
  41 //----------------------------------------------------------------------
  42
  43 wxPyApp* wxPythonApp = NULL;  // Global instance of application object
  44 bool wxPyDoCleanup = False;
  45 bool wxPyDoingCleanup = False;
  46
  47
  48 #ifdef WXP_WITH_THREAD
  49 struct wxPyThreadState {
  50     unsigned long  tid;
  51     PyThreadState* tstate;
  52     int            blocked;
  53
  54     wxPyThreadState(unsigned long _tid=0, PyThreadState* _tstate=NULL)
  55         : tid(_tid), tstate(_tstate), blocked(1) {}
  56 };
  57
  58 #include <wx/dynarray.h>
  59 WX_DECLARE_OBJARRAY(wxPyThreadState, wxPyThreadStateArray);
  60 #include <wx/arrimpl.cpp>
  61 WX_DEFINE_OBJARRAY(wxPyThreadStateArray);
  62
  63 wxPyThreadStateArray* wxPyTStates = NULL;
  64 wxMutex*              wxPyTMutex = NULL;
  65 #endif
  66
  67
  68 static PyObject* wxPython_dict = NULL;
  69 static PyObject* wxPyAssertionError = NULL;
  70
  71 PyObject* wxPyPtrTypeMap = NULL;
  72
  73
  74 #ifdef __WXMSW__             // If building for win32...
  75 //----------------------------------------------------------------------
  76 // This gets run when the DLL is loaded.  We just need to save a handle.
  77 //----------------------------------------------------------------------
  78
  79 BOOL WINAPI DllMain(
  80     HINSTANCE   hinstDLL,    // handle to DLL module
  81     DWORD       fdwReason,   // reason for calling function
  82     LPVOID      lpvReserved  // reserved
  83    )
  84 {
  85     // If wxPython is embedded in another wxWindows app then
  86     // the inatance has already been set.
  87     if (! wxGetInstance())
  88         wxSetInstance(hinstDLL);
  89     return True;
  90 }
  91 #endif
  92
  93 //----------------------------------------------------------------------
  94 // Classes for implementing the wxp main application shell.
  95 //----------------------------------------------------------------------
  96
  97 IMPLEMENT_ABSTRACT_CLASS(wxPyApp, wxApp);
  98
  99
 100 wxPyApp::wxPyApp() {
 101     m_assertMode = wxPYAPP_ASSERT_EXCEPTION;
 102     m_startupComplete = False;
 103 }
 104
 105
 106 wxPyApp::~wxPyApp() {
 107 }
 108
 109
 110 // This one isn't acutally called...  We fake it with _BootstrapApp
 111 bool wxPyApp::OnInit() {
 112     return False;
 113 }
 114
 115
 116 int  wxPyApp::MainLoop() {
 117     int retval = 0;
 118
 119     DeletePendingObjects();
 120     bool initialized = wxTopLevelWindows.GetCount() != 0;
 121     if (initialized) {
 122         if ( m_exitOnFrameDelete == Later ) {
 123             m_exitOnFrameDelete = Yes;
 124         }
 125
 126         retval = wxApp::MainLoop();
 127         OnExit();
 128     }
 129     return retval;
 130 }
 131
 132
 133 bool wxPyApp::OnInitGui() {
 134     bool rval=True;
 135     wxApp::OnInitGui();  // in this case always call the base class version
 136     wxPyBeginBlockThreads();
 137     if (wxPyCBH_findCallback(m_myInst, "OnInitGui"))
 138         rval = wxPyCBH_callCallback(m_myInst, Py_BuildValue("()"));
 139     wxPyEndBlockThreads();
 140     return rval;
 141 }
 142
 143
 144 int wxPyApp::OnExit() {
 145     int rval=0;
 146     wxPyBeginBlockThreads();
 147     if (wxPyCBH_findCallback(m_myInst, "OnExit"))
 148         rval = wxPyCBH_callCallback(m_myInst, Py_BuildValue("()"));
 149     wxPyEndBlockThreads();
 150     wxApp::OnExit();  // in this case always call the base class version
 151     return rval;
 152 }
 153
 154
 155 #ifdef __WXDEBUG__
 156 void wxPyApp::OnAssert(const wxChar *file,
 157                      int line,
 158                      const wxChar *cond,
 159                      const wxChar *msg) {
 160
 161     // if we're not fully initialized then just log the error
 162     if (! m_startupComplete) {
 163         wxString buf;
 164         buf.Alloc(4096);
 165         buf.Printf(wxT("%s(%d): assert \"%s\" failed"),
 166                    file, line, cond);
 167         if (msg != NULL) {
 168             buf += wxT(": ");
 169             buf += msg;
 170         }
 171         wxLogDebug(buf);
 172         return;
 173     }
 174
 175     // If the OnAssert is overloaded in the Python class then call it...
 176     bool found;
 177     wxPyBeginBlockThreads();
 178     if ((found = wxPyCBH_findCallback(m_myInst, "OnAssert"))) {
 179         PyObject* fso = wx2PyString(file);
 180         PyObject* cso = wx2PyString(file);
 181         PyObject* mso;
 182         if (msg != NULL)
 183             mso = wx2PyString(file);
 184         else {
 185             mso = Py_None; Py_INCREF(Py_None);
 186         }
 187         wxPyCBH_callCallback(m_myInst, Py_BuildValue("(OiOO)", fso, line, cso, mso));
 188         Py_DECREF(fso);
 189         Py_DECREF(cso);
 190         Py_DECREF(mso);
 191     }
 192     wxPyEndBlockThreads();
 193
 194     // ...otherwise do our own thing with it
 195     if (! found) {
 196         // ignore it?
 197         if (m_assertMode & wxPYAPP_ASSERT_SUPPRESS)
 198             return;
 199
 200         // turn it into a Python exception?
 201         if (m_assertMode & wxPYAPP_ASSERT_EXCEPTION) {
 202             wxString buf;
 203             buf.Alloc(4096);
 204             buf.Printf(wxT("C++ assertion \"%s\" failed in %s(%d)"), cond, file, line);
 205             if (msg != NULL) {
 206                 buf += wxT(": ");
 207                 buf += msg;
 208             }
 209
 210             // set the exception
 211             wxPyBeginBlockThreads();
 212             PyObject* s = wx2PyString(buf);
 213             PyErr_SetObject(wxPyAssertionError, s);
 214             Py_DECREF(s);
 215             wxPyEndBlockThreads();
 216
 217             // Now when control returns to whatever API wrapper was called from
 218             // Python it should detect that an exception is set and will return
 219             // NULL, signalling the exception to Python.
 220         }
 221
 222         // Send it to the normal log destination, but only if
 223         // not _DIALOG because it will call this too
 224         if ( (m_assertMode & wxPYAPP_ASSERT_LOG) && !(m_assertMode & wxPYAPP_ASSERT_DIALOG)) {
 225             wxString buf;
 226             buf.Alloc(4096);
 227             buf.Printf(wxT("%s(%d): assert \"%s\" failed"),
 228                        file, line, cond);
 229             if (msg != NULL) {
 230                 buf += wxT(": ");
 231                 buf += msg;
 232             }
 233             wxLogDebug(buf);
 234         }
 235
 236         // do the normal wx assert dialog?
 237         if (m_assertMode & wxPYAPP_ASSERT_DIALOG)
 238             wxApp::OnAssert(file, line, cond, msg);
 239     }
 240 }
 241 #endif
 242
 243
 244
 245 /*static*/
 246 bool wxPyApp::GetMacSupportPCMenuShortcuts() {
 247 #ifdef __WXMAC__
 248     return s_macSupportPCMenuShortcuts;
 249 #else
 250     return 0;
 251 #endif
 252 }
 253
 254 /*static*/
 255 long wxPyApp::GetMacAboutMenuItemId() {
 256 #ifdef __WXMAC__
 257     return s_macAboutMenuItemId;
 258 #else
 259     return 0;
 260 #endif
 261 }
 262
 263 /*static*/
 264 long wxPyApp::GetMacPreferencesMenuItemId() {
 265 #ifdef __WXMAC__
 266     return s_macPreferencesMenuItemId;
 267 #else
 268     return 0;
 269 #endif
 270 }
 271
 272 /*static*/
 273 long wxPyApp::GetMacExitMenuItemId() {
 274 #ifdef __WXMAC__
 275     return s_macExitMenuItemId;
 276 #else
 277     return 0;
 278 #endif
 279 }
 280
 281 /*static*/
 282 wxString wxPyApp::GetMacHelpMenuTitleName() {
 283 #ifdef __WXMAC__
 284     return s_macHelpMenuTitleName;
 285 #else
 286     return wxEmptyString;
 287 #endif
 288 }
 289
 290 /*static*/
 291 void wxPyApp::SetMacSupportPCMenuShortcuts(bool val) {
 292 #ifdef __WXMAC__
 293     s_macSupportPCMenuShortcuts = val;
 294 #endif
 295 }
 296
 297 /*static*/
 298 void wxPyApp::SetMacAboutMenuItemId(long val) {
 299 #ifdef __WXMAC__
 300     s_macAboutMenuItemId = val;
 301 #endif
 302 }
 303
 304 /*static*/
 305 void wxPyApp::SetMacPreferencesMenuItemId(long val) {
 306 #ifdef __WXMAC__
 307     s_macPreferencesMenuItemId = val;
 308 #endif
 309 }
 310
 311 /*static*/
 312 void wxPyApp::SetMacExitMenuItemId(long val) {
 313 #ifdef __WXMAC__
 314     s_macExitMenuItemId = val;
 315 #endif
 316 }
 317
 318 /*static*/
 319 void wxPyApp::SetMacHelpMenuTitleName(const wxString& val) {
 320 #ifdef __WXMAC__
 321     s_macHelpMenuTitleName = val;
 322 #endif
 323 }
 324
 325
 326 // This finishes the initialization of wxWindows and then calls the OnInit
 327 // that should be present in the derived (Python) class.
 328 void wxPyApp::_BootstrapApp()
 329 {
 330     bool        result;
 331     PyObject*   retval = NULL;
 332     PyObject*   pyint  = NULL;
 333
 334
 335     // Get any command-line args passed to this program from the sys module
 336     int    argc = 0;
 337     char** argv = NULL;
 338     wxPyBeginBlockThreads();
 339     PyObject* sysargv = PySys_GetObject("argv");
 340     if (sysargv != NULL) {
 341         argc = PyList_Size(sysargv);
 342         argv = new char*[argc+1];
 343         int x;
 344         for(x=0; x<argc; x++) {
 345             PyObject *pyArg = PyList_GetItem(sysargv, x);
 346             argv[x] = PyString_AsString(pyArg);
 347         }
 348         argv[argc] = NULL;
 349     }
 350     wxPyEndBlockThreads();
 351
 352     result = wxEntryStart(argc, argv);
 353     delete [] argv;
 354
 355     wxPyBeginBlockThreads();
 356     if (! result)  {
 357         PyErr_SetString(PyExc_SystemError, "wxEntryStart failed!");
 358         goto error;
 359     }
 360
 361     // The stock objects were all NULL when they were loaded into
 362     // SWIG generated proxies, so re-init those now...
 363     wxPy_ReinitStockObjects(3);
 364
 365     // It's now ok to generate exceptions for assertion errors.
 366     wxPythonApp->SetStartupComplete(True);
 367
 368     // Call the Python wxApp's OnInit function
 369     if (wxPyCBH_findCallback(m_myInst, "OnInit")) {
 370
 371         PyObject* method = m_myInst.GetLastFound();
 372         PyObject* argTuple = PyTuple_New(0);
 373         retval = PyEval_CallObject(method, argTuple);
 374         Py_DECREF(argTuple);
 375         Py_DECREF(method);
 376         if (retval == NULL)
 377             goto error;
 378
 379         pyint = PyNumber_Int(retval);
 380         if (! pyint) {
 381             PyErr_SetString(PyExc_TypeError, "OnInit should return a boolean value");
 382             goto error;
 383         }
 384         result = PyInt_AS_LONG(pyint);
 385     }
 386     else {
 387         // Is it okay if there is no OnInit?  Probably so...
 388         result = True;
 389     }
 390
 391
 392     if (! result) {
 393         PyErr_SetString(PyExc_SystemExit, "OnInit returned False, exiting...");
 394     }
 395
 396  error:
 397     Py_XDECREF(retval);
 398     Py_XDECREF(pyint);
 399
 400     wxPyEndBlockThreads();
 401 };
 402
 403 //---------------------------------------------------------------------
 404 //----------------------------------------------------------------------
 405
 406
 407 #if 0
 408 static char* wxPyCopyCString(const wxChar* src)
 409 {
 410     wxWX2MBbuf buff = (wxWX2MBbuf)wxConvCurrent->cWX2MB(src);
 411     size_t len = strlen(buff);
 412     char*  dest = new char[len+1];
 413     strcpy(dest, buff);
 414     return dest;
 415 }
 416
 417 #if wxUSE_UNICODE
 418 static char* wxPyCopyCString(const char* src)   // we need a char version too
 419 {
 420     size_t len = strlen(src);
 421     char*  dest = new char[len+1];
 422     strcpy(dest, src);
 423     return dest;
 424 }
 425 #endif
 426
 427 static wxChar* wxPyCopyWString(const char *src)
 428 {
 429     //wxMB2WXbuf buff = wxConvCurrent->cMB2WX(src);
 430     wxString str(src, *wxConvCurrent);
 431     return copystring(str);
 432 }
 433
 434 #if wxUSE_UNICODE
 435 static wxChar* wxPyCopyWString(const wxChar *src)
 436 {
 437     return copystring(src);
 438 }
 439 #endif
 440 #endif
 441
 442
 443 inline const char* dropwx(const char* name) {
 444     if (name[0] == 'w' && name[1] == 'x')
 445         return name+2;
 446     else
 447         return name;
 448 }
 449
 450 //----------------------------------------------------------------------
 451
 452 // This function is called when the wxc module is imported to do some initial
 453 // setup.  (Before there is a wxApp object.)  The rest happens in
 454 // wxPyApp::_BootstrapApp
 455 void __wxPyPreStart(PyObject* moduleDict)
 456 {
 457
 458 #ifdef __WXMSW__
 459 //    wxCrtSetDbgFlag(_CRTDBG_LEAK_CHECK_DF);
 460 #endif
 461
 462 #ifdef WXP_WITH_THREAD
 463     PyEval_InitThreads();
 464     wxPyTStates = new wxPyThreadStateArray;
 465     wxPyTMutex = new wxMutex;
 466
 467     // Save the current (main) thread state in our array
 468     PyThreadState* tstate = wxPyBeginAllowThreads();
 469     wxPyEndAllowThreads(tstate);
 470 #endif
 471
 472     // Ensure that the build options in the DLL (or whatever) match this build
 473     wxApp::CheckBuildOptions(WX_BUILD_OPTIONS_SIGNATURE, "wxPython");
 474
 475     // Init the stock objects to a non-NULL value so SWIG doesn't create them as None
 476     wxPy_ReinitStockObjects(1);
 477 }
 478
 479
 480
 481 void __wxPyCleanup() {
 482     wxPyDoingCleanup = True;
 483     if (wxPyDoCleanup) {
 484         wxPyDoCleanup = False;
 485         wxEntryCleanup();
 486     }
 487 #ifdef WXP_WITH_THREAD
 488     delete wxPyTMutex;
 489     wxPyTMutex = NULL;
 490     wxPyTStates->Empty();
 491     delete wxPyTStates;
 492     wxPyTStates = NULL;
 493 #endif
 494 }
 495
 496
 497 // Save a reference to the dictionary of the wx.core module, and inject
 498 // a few more things into it.
 499 PyObject* __wxPySetDictionary(PyObject* /* self */, PyObject* args)
 500 {
 501
 502     if (!PyArg_ParseTuple(args, "O", &wxPython_dict))
 503         return NULL;
 504
 505     if (!PyDict_Check(wxPython_dict)) {
 506         PyErr_SetString(PyExc_TypeError, "_wxPySetDictionary must have dictionary object!");
 507         return NULL;
 508     }
 509
 510     if (! wxPyPtrTypeMap)
 511         wxPyPtrTypeMap = PyDict_New();
 512     PyDict_SetItemString(wxPython_dict, "__wxPyPtrTypeMap", wxPyPtrTypeMap);
 513
 514     // Create an exception object to use for wxASSERTions
 515     wxPyAssertionError = PyErr_NewException("wx.core.PyAssertionError",
 516                                             PyExc_AssertionError, NULL);
 517     PyDict_SetItemString(wxPython_dict, "PyAssertionError", wxPyAssertionError);
 518
 519
 520 #ifdef __WXMOTIF__
 521 #define wxPlatform "__WXMOTIF__"
 522 #endif
 523 #ifdef __WXX11__
 524 #define wxPlatform "__WXX11__"
 525 #endif
 526 #ifdef __WXGTK__
 527 #define wxPlatform "__WXGTK__"
 528 #endif
 529 #if defined(__WIN32__) || defined(__WXMSW__)
 530 #define wxPlatform "__WXMSW__"
 531 #endif
 532 #ifdef __WXMAC__
 533 #define wxPlatform "__WXMAC__"
 534 #endif
 535
 536 #ifdef __WXDEBUG__
 537     int wxdebug = 1;
 538 #else
 539     int wxdebug = 0;
 540 #endif
 541
 542     PyDict_SetItemString(wxPython_dict, "Platform", PyString_FromString(wxPlatform));
 543     PyDict_SetItemString(wxPython_dict, "USE_UNICODE", PyInt_FromLong(wxUSE_UNICODE));
 544     PyDict_SetItemString(wxPython_dict, "__WXDEBUG__", PyInt_FromLong(wxdebug));
 545
 546     RETURN_NONE();
 547 }
 548
 549
 550 //---------------------------------------------------------------------------
 551
 552 // Python's PyInstance_Check does not return True for instances of new-style
 553 // classes.  This should get close enough for both new and old classes but I
 554 // should re-evaluate the need for doing instance checks...
 555 bool wxPyInstance_Check(PyObject* obj) {
 556     return PyObject_HasAttrString(obj, "__class__") != 0;
 557 }
 558
 559
 560 // This one checks if the object is an instance of a SWIG proxy class (it has
 561 // a .this attribute)
 562 bool wxPySwigInstance_Check(PyObject* obj) {
 563     return PyObject_HasAttrString(obj, "this") != 0;
 564 }
 565
 566 //---------------------------------------------------------------------------
 567
 568 // The stock objects are no longer created when the wxc module is imported,
 569 // but only after the app object has been created.  The
 570 // wxPy_ReinitStockObjects function will be called 3 times to pass the stock
 571 // objects though various stages of evolution:
 572 //
 573 //   pass 1: Set all the pointers to a non-NULL value so the Python proxy
 574 //           object will be created (otherwise it will just use None.)
 575 //
 576 //   pass 2: After the module has been imported and the python proxys have
 577 //           been created, then set the __class__ to be _wxPyUnbornObject so
 578 //           it will catch any access to the object and will raise an exception.
 579 //
 580 //   pass 3: Finally, from OnInit patch things up so the stock objects can
 581 //           be used.
 582
 583
 584 PyObject* __wxPyFixStockObjects(PyObject* /* self */, PyObject* args)
 585 {
 586     wxPy_ReinitStockObjects(2);
 587     RETURN_NONE();
 588 }
 589
 590
 591 static void rsoPass2(const char* name)
 592 {
 593     static PyObject* unbornObjectClass = NULL;
 594     PyObject* obj;
 595
 596     if (unbornObjectClass == NULL) {
 597         unbornObjectClass = PyDict_GetItemString(wxPython_dict, "_wxPyUnbornObject");
 598         Py_INCREF(unbornObjectClass);
 599     }
 600
 601     // Find the object instance
 602     obj = PyDict_GetItemString(wxPython_dict, (char*)dropwx(name));
 603     wxCHECK_RET(obj != NULL, wxT("Unable to find stock object"));
 604     wxCHECK_RET(wxPySwigInstance_Check(obj), wxT("Not a swig instance"));
 605
 606     // Change its class
 607     PyObject_SetAttrString(obj, "__class__",  unbornObjectClass);
 608
 609 }
 610
 611 static void rsoPass3(const char* name, const char* classname, void* ptr)
 612 {
 613     PyObject* obj;
 614     PyObject* classobj;
 615     PyObject* ptrobj;
 616
 617     // Find the object instance
 618     obj = PyDict_GetItemString(wxPython_dict, (char*)dropwx(name));
 619     wxCHECK_RET(obj != NULL, wxT("Unable to find stock object"));
 620     wxCHECK_RET(wxPySwigInstance_Check(obj), wxT("Not a swig instance"));
 621
 622     // Find the class object and put it back in the instance
 623     classobj = PyDict_GetItemString(wxPython_dict, (char*)dropwx(classname));
 624     wxCHECK_RET(classobj != NULL, wxT("Unable to find stock class object"));
 625     PyObject_SetAttrString(obj, "__class__",  classobj);
 626
 627     // Rebuild the .this swigified pointer with the new value of the C++ pointer
 628     ptrobj = wxPyMakeSwigPtr(ptr, wxString(classname, *wxConvCurrent));
 629     PyObject_SetAttrString(obj, "this", ptrobj);
 630     Py_DECREF(ptrobj);
 631 }
 632
 633
 634
 635 void wxPy_ReinitStockObjects(int pass)
 636 {
 637
 638 #define REINITOBJ(name, classname) \
 639     if (pass == 1) { name = (classname*)0xC0C0C0C0; } \
 640     else if (pass == 2) { rsoPass2(#name); } \
 641     else if (pass == 3) { rsoPass3(#name, #classname, (void*)name); }
 642
 643
 644 #define REINITOBJ2(name, classname) \
 645     if (pass == 1) { } \
 646     else if (pass == 2) { rsoPass2(#name); } \
 647     else if (pass == 3) { rsoPass3(#name, #classname, (void*)&name); }
 648
 649
 650     REINITOBJ(wxNORMAL_FONT, wxFont);
 651     REINITOBJ(wxSMALL_FONT, wxFont);
 652     REINITOBJ(wxITALIC_FONT, wxFont);
 653     REINITOBJ(wxSWISS_FONT, wxFont);
 654
 655     REINITOBJ(wxRED_PEN, wxPen);
 656     REINITOBJ(wxCYAN_PEN, wxPen);
 657     REINITOBJ(wxGREEN_PEN, wxPen);
 658     REINITOBJ(wxBLACK_PEN, wxPen);
 659     REINITOBJ(wxWHITE_PEN, wxPen);
 660     REINITOBJ(wxTRANSPARENT_PEN, wxPen);
 661     REINITOBJ(wxBLACK_DASHED_PEN, wxPen);
 662     REINITOBJ(wxGREY_PEN, wxPen);
 663     REINITOBJ(wxMEDIUM_GREY_PEN, wxPen);
 664     REINITOBJ(wxLIGHT_GREY_PEN, wxPen);
 665
 666     REINITOBJ(wxBLUE_BRUSH, wxBrush);
 667     REINITOBJ(wxGREEN_BRUSH, wxBrush);
 668     REINITOBJ(wxWHITE_BRUSH, wxBrush);
 669     REINITOBJ(wxBLACK_BRUSH, wxBrush);
 670     REINITOBJ(wxTRANSPARENT_BRUSH, wxBrush);
 671     REINITOBJ(wxCYAN_BRUSH, wxBrush);
 672     REINITOBJ(wxRED_BRUSH, wxBrush);
 673     REINITOBJ(wxGREY_BRUSH, wxBrush);
 674     REINITOBJ(wxMEDIUM_GREY_BRUSH, wxBrush);
 675     REINITOBJ(wxLIGHT_GREY_BRUSH, wxBrush);
 676
 677     REINITOBJ(wxBLACK, wxColour);
 678     REINITOBJ(wxWHITE, wxColour);
 679     REINITOBJ(wxRED, wxColour);
 680     REINITOBJ(wxBLUE, wxColour);
 681     REINITOBJ(wxGREEN, wxColour);
 682     REINITOBJ(wxCYAN, wxColour);
 683     REINITOBJ(wxLIGHT_GREY, wxColour);
 684
 685     REINITOBJ(wxSTANDARD_CURSOR, wxCursor);
 686     REINITOBJ(wxHOURGLASS_CURSOR, wxCursor);
 687     REINITOBJ(wxCROSS_CURSOR, wxCursor);
 688
 689     REINITOBJ2(wxNullBitmap, wxBitmap);
 690     REINITOBJ2(wxNullIcon, wxIcon);
 691     REINITOBJ2(wxNullCursor, wxCursor);
 692     REINITOBJ2(wxNullPen, wxPen);
 693     REINITOBJ2(wxNullBrush, wxBrush);
 694     REINITOBJ2(wxNullPalette, wxPalette);
 695     REINITOBJ2(wxNullFont, wxFont);
 696     REINITOBJ2(wxNullColour, wxColour);
 697
 698     REINITOBJ(wxTheFontList, wxFontList);
 699     REINITOBJ(wxThePenList, wxPenList);
 700     REINITOBJ(wxTheBrushList, wxBrushList);
 701     REINITOBJ(wxTheColourDatabase, wxColourDatabase);
 702
 703
 704     REINITOBJ(wxTheClipboard, wxClipboard);
 705     REINITOBJ2(wxDefaultValidator, wxValidator);
 706     REINITOBJ2(wxNullImage, wxImage);
 707     REINITOBJ2(wxNullAcceleratorTable, wxAcceleratorTable);
 708
 709 #undef REINITOBJ
 710 #undef REINITOBJ2
 711 }
 712
 713 //---------------------------------------------------------------------------
 714
 715 void wxPyClientData_dtor(wxPyClientData* self) {
 716     if (! wxPyDoingCleanup) {           // Don't do it during cleanup as Python
 717                                         // may have already garbage collected the object...
 718         wxPyBeginBlockThreads();
 719         Py_DECREF(self->m_obj);
 720         self->m_obj = NULL;
 721         wxPyEndBlockThreads();
 722     }
 723 }
 724
 725 void wxPyUserData_dtor(wxPyUserData* self) {
 726     if (! wxPyDoingCleanup) {
 727         wxPyBeginBlockThreads();
 728         Py_DECREF(self->m_obj);
 729         self->m_obj = NULL;
 730         wxPyEndBlockThreads();
 731     }
 732 }
 733
 734
 735 // This is called when an OOR controled object is being destroyed.  Although
 736 // the C++ object is going away there is no way to force the Python object
 737 // (and all references to it) to die too.  This causes problems (crashes) in
 738 // wxPython when a python shadow object attempts to call a C++ method using
 739 // the now bogus pointer... So to try and prevent this we'll do a little black
 740 // magic and change the class of the python instance to a class that will
 741 // raise an exception for any attempt to call methods with it.  See
 742 // _wxPyDeadObject in _core_ex.py for the implementation of this class.
 743 void wxPyOORClientData_dtor(wxPyOORClientData* self) {
 744
 745     static PyObject* deadObjectClass = NULL;
 746
 747     wxPyBeginBlockThreads();
 748     if (deadObjectClass == NULL) {
 749         deadObjectClass = PyDict_GetItemString(wxPython_dict, "_wxPyDeadObject");
 750         // TODO:  Can not wxASSERT here because inside a wxPyBeginBlock Threads,
 751         // will lead to a deadlock when it tries to aquire the GIL again.
 752         //wxASSERT_MSG(deadObjectClass != NULL, wxT("Can't get _wxPyDeadObject class!"));
 753         Py_INCREF(deadObjectClass);
 754     }
 755
 756
 757     // Only if there is more than one reference to the object
 758     if ( !wxPyDoingCleanup && self->m_obj->ob_refcnt > 1 ) {
 759         // bool isInstance = wxPyInstance_Check(self->m_obj);
 760         // TODO same here
 761         //wxASSERT_MSG(isInstance, wxT("m_obj not an instance!?!?!"));
 762
 763         // Call __del__, if there is one.
 764         PyObject* func = PyObject_GetAttrString(self->m_obj, "__del__");
 765         if (func) {
 766             PyObject* rv = PyObject_CallMethod(self->m_obj, "__del__", NULL);
 767             Py_XDECREF(rv);
 768             Py_DECREF(func);
 769         }
 770         if (PyErr_Occurred())
 771             PyErr_Clear();      // just ignore it for now
 772
 773
 774         PyObject* dict = PyObject_GetAttrString(self->m_obj, "__dict__");
 775         if (dict) {
 776             // Clear the instance's dictionary
 777             PyDict_Clear(dict);
 778
 779             // put the name of the old class into the instance, and then reset the
 780             // class to be the dead class.
 781             PyObject* klass = PyObject_GetAttrString(self->m_obj, "__class__");
 782             PyObject* name =  PyObject_GetAttrString(klass, "__name__");
 783             PyDict_SetItemString(dict, "_name", name);
 784             PyObject_SetAttrString(self->m_obj, "__class__",  deadObjectClass);
 785             //Py_INCREF(deadObjectClass);
 786             Py_DECREF(klass);
 787             Py_DECREF(name);
 788         }
 789     }
 790
 791     // m_obj is DECREF'd in the base class dtor...
 792     wxPyEndBlockThreads();
 793 }
 794
 795
 796 //---------------------------------------------------------------------------
 797 // Stuff used by OOR to find the right wxPython class type to return and to
 798 // build it.
 799
 800
 801 // The pointer type map is used when the "pointer" type name generated by SWIG
 802 // is not the same as the shadow class name, for example wxPyTreeCtrl
 803 // vs. wxTreeCtrl.  It needs to be referenced in Python as well as from C++,
 804 // so we'll just make it a Python dictionary in the wx module's namespace.
 805 // (See __wxSetDictionary)
 806 void wxPyPtrTypeMap_Add(const char* commonName, const char* ptrName) {
 807     if (! wxPyPtrTypeMap)
 808         wxPyPtrTypeMap = PyDict_New();
 809     PyDict_SetItemString(wxPyPtrTypeMap,
 810                          (char*)commonName,
 811                          PyString_FromString((char*)ptrName));
 812 }
 813
 814
 815
 816
 817 PyObject*  wxPyMake_wxObject(wxObject* source, bool checkEvtHandler) {
 818     PyObject* target = NULL;
 819     bool      isEvtHandler = False;
 820
 821     if (source) {
 822         // If it's derived from wxEvtHandler then there may
 823         // already be a pointer to a Python object that we can use
 824         // in the OOR data.
 825         if (checkEvtHandler && wxIsKindOf(source, wxEvtHandler)) {
 826             isEvtHandler = True;
 827             wxEvtHandler* eh = (wxEvtHandler*)source;
 828             wxPyOORClientData* data = (wxPyOORClientData*)eh->GetClientObject();
 829             if (data) {
 830                 target = data->m_obj;
 831                 if (target)
 832                     Py_INCREF(target);
 833             }
 834         }
 835
 836         if (! target) {
 837             // Otherwise make it the old fashioned way by making a new shadow
 838             // object and putting this pointer in it.  Look up the class
 839             // heirarchy until we find a class name that is located in the
 840             // python module.
 841             const wxClassInfo* info   = source->GetClassInfo();
 842             wxString           name   = info->GetClassName();
 843             bool               exists = wxPyCheckSwigType(name);
 844             while (info && !exists) {
 845                 info = info->GetBaseClass1();
 846                 name = info->GetClassName();
 847                 exists = wxPyCheckSwigType(name);
 848             }
 849             if (info) {
 850                 target = wxPyConstructObject((void*)source, name, False);
 851                 if (target && isEvtHandler)
 852                     ((wxEvtHandler*)source)->SetClientObject(new wxPyOORClientData(target));
 853             } else {
 854                 wxString msg(wxT("wxPython class not found for "));
 855                 msg += source->GetClassInfo()->GetClassName();
 856                 PyErr_SetString(PyExc_NameError, msg.mbc_str());
 857                 target = NULL;
 858             }
 859         }
 860     } else {  // source was NULL so return None.
 861         Py_INCREF(Py_None); target = Py_None;
 862     }
 863     return target;
 864 }
 865
 866
 867 PyObject*  wxPyMake_wxSizer(wxSizer* source) {
 868     PyObject* target = NULL;
 869
 870     if (source && wxIsKindOf(source, wxSizer)) {
 871         // If it's derived from wxSizer then there may already be a pointer to
 872         // a Python object that we can use in the OOR data.
 873         wxSizer* sz = (wxSizer*)source;
 874         wxPyOORClientData* data = (wxPyOORClientData*)sz->GetClientObject();
 875         if (data) {
 876             target = data->m_obj;
 877             if (target)
 878                 Py_INCREF(target);
 879         }
 880     }
 881     if (! target) {
 882         target = wxPyMake_wxObject(source, False);
 883         if (target != Py_None)
 884             ((wxSizer*)source)->SetClientObject(new wxPyOORClientData(target));
 885     }
 886     return target;
 887 }
 888
 889
 890 //---------------------------------------------------------------------------
 891
 892
 893 #ifdef WXP_WITH_THREAD
 894 inline
 895 unsigned long wxPyGetCurrentThreadId() {
 896     return wxThread::GetCurrentId();
 897 }
 898
 899 static wxPyThreadState gs_shutdownTState;
 900
 901 static
 902 wxPyThreadState* wxPyGetThreadState() {
 903     if (wxPyTMutex == NULL) // Python is shutting down...
 904         return &gs_shutdownTState;
 905
 906     unsigned long ctid = wxPyGetCurrentThreadId();
 907     wxPyThreadState* tstate = NULL;
 908
 909     wxPyTMutex->Lock();
 910     for(size_t i=0; i < wxPyTStates->GetCount(); i++) {
 911         wxPyThreadState& info = wxPyTStates->Item(i);
 912         if (info.tid == ctid) {
 913             tstate = &info;
 914             break;
 915         }
 916     }
 917     wxPyTMutex->Unlock();
 918     wxASSERT_MSG(tstate, wxT("PyThreadState should not be NULL!"));
 919     return tstate;
 920 }
 921
 922
 923 static
 924 void wxPySaveThreadState(PyThreadState* tstate) {
 925     if (wxPyTMutex == NULL) { // Python is shutting down, assume a single thread...
 926         gs_shutdownTState.tstate = tstate;
 927         return;
 928     }
 929     unsigned long ctid = wxPyGetCurrentThreadId();
 930     wxPyTMutex->Lock();
 931     for(size_t i=0; i < wxPyTStates->GetCount(); i++) {
 932         wxPyThreadState& info = wxPyTStates->Item(i);
 933         if (info.tid == ctid) {
 934 #if 0
 935             if (info.tstate != tstate)
 936                 wxLogMessage("*** tstate mismatch!???");
 937 #endif
 938             // info.tstate = tstate;    *** DO NOT update existing ones???
 939             // Normally it will never change, but apparently COM callbacks
 940             // (i.e. ActiveX controls) will (incorrectly IMHO) use a transient
 941             // tstate which will then be garbage the next time we try to use
 942             // it...
 943             wxPyTMutex->Unlock();
 944             return;
 945         }
 946     }
 947     // not found, so add it...
 948     wxPyTStates->Add(new wxPyThreadState(ctid, tstate));
 949     wxPyTMutex->Unlock();
 950 }
 951
 952 #endif
 953
 954
 955
 956 // Calls from Python to wxWindows code are wrapped in calls to these
 957 // functions:
 958
 959 PyThreadState* wxPyBeginAllowThreads() {
 960 #ifdef WXP_WITH_THREAD
 961     PyThreadState* saved = PyEval_SaveThread();  // Py_BEGIN_ALLOW_THREADS;
 962     wxPySaveThreadState(saved);
 963     wxPyGetThreadState()->blocked -= 1;
 964     return saved;
 965 #else
 966     return NULL;
 967 #endif
 968 }
 969
 970 void wxPyEndAllowThreads(PyThreadState* saved) {
 971 #ifdef WXP_WITH_THREAD
 972     wxPyGetThreadState()->blocked += 1;
 973     PyEval_RestoreThread(saved);   // Py_END_ALLOW_THREADS;
 974 #endif
 975 }
 976
 977
 978
 979 // Calls from wxWindows back to Python code, or even any PyObject
 980 // manipulations, PyDECREF's and etc. are wrapped in calls to these functions:
 981
 982 void wxPyBeginBlockThreads() {
 983 #ifdef WXP_WITH_THREAD
 984     wxPyThreadState* tstate = wxPyGetThreadState();
 985     if (tstate->blocked++ == 0) {  // if nested calls then do nothing
 986         PyEval_RestoreThread(tstate->tstate);
 987     }
 988 #endif
 989 }
 990
 991
 992 void wxPyEndBlockThreads() {
 993 #ifdef WXP_WITH_THREAD
 994     wxPyThreadState* tstate = wxPyGetThreadState();
 995     tstate->blocked -= 1;
 996     if ( tstate->blocked == 0) {  // if nested calls then do nothing
 997         PyEval_SaveThread();
 998     }
 999 #endif
1000 }
1001
1002
1003 //---------------------------------------------------------------------------
1004 // wxPyInputStream and wxPyCBInputStream methods
1005
1006
1007 void wxPyInputStream::close() {
1008     /* do nothing for now */
1009 }
1010
1011 void wxPyInputStream::flush() {
1012     /* do nothing for now */
1013 }
1014
1015 bool wxPyInputStream::eof() {
1016     if (m_wxis)
1017         return m_wxis->Eof();
1018     else
1019         return True;
1020 }
1021
1022 wxPyInputStream::~wxPyInputStream() {
1023     /* do nothing */
1024 }
1025
1026
1027
1028
1029 PyObject* wxPyInputStream::read(int size) {
1030     PyObject* obj = NULL;
1031     wxMemoryBuffer buf;
1032     const int BUFSIZE = 1024;
1033
1034     // check if we have a real wxInputStream to work with
1035     if (!m_wxis) {
1036         wxPyBeginBlockThreads();
1037         PyErr_SetString(PyExc_IOError, "no valid C-wxInputStream");
1038         wxPyEndBlockThreads();
1039         return NULL;
1040     }
1041
1042     if (size < 0) {
1043         // read while bytes are available on the stream
1044         while ( m_wxis->CanRead() ) {
1045             m_wxis->Read(buf.GetAppendBuf(BUFSIZE), BUFSIZE);
1046             buf.UngetAppendBuf(m_wxis->LastRead());
1047         }
1048
1049     } else {  // Read only size number of characters
1050         m_wxis->Read(buf.GetWriteBuf(size), size);
1051         buf.UngetWriteBuf(m_wxis->LastRead());
1052     }
1053
1054     // error check
1055     wxPyBeginBlockThreads();
1056     wxStreamError err = m_wxis->GetLastError();
1057     if (err != wxSTREAM_NO_ERROR && err != wxSTREAM_EOF) {
1058         PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
1059     }
1060     else {
1061         // We use only strings for the streams, not unicode
1062         obj = PyString_FromStringAndSize(buf, buf.GetDataLen());
1063     }
1064     wxPyEndBlockThreads();
1065     return obj;
1066 }
1067
1068
1069 PyObject* wxPyInputStream::readline(int size) {
1070     PyObject* obj = NULL;
1071     wxMemoryBuffer buf;
1072     int i;
1073     char ch;
1074
1075     // check if we have a real wxInputStream to work with
1076     if (!m_wxis) {
1077         wxPyBeginBlockThreads();
1078         PyErr_SetString(PyExc_IOError,"no valid C-wxInputStream");
1079         wxPyEndBlockThreads();
1080         return NULL;
1081     }
1082
1083     // read until \n or byte limit reached
1084     for (i=ch=0; (ch != '\n') && (m_wxis->CanRead()) && ((size < 0) || (i < size)); i++) {
1085         ch = m_wxis->GetC();
1086         buf.AppendByte(ch);
1087     }
1088
1089     // errorcheck
1090     wxPyBeginBlockThreads();
1091     wxStreamError err = m_wxis->GetLastError();
1092     if (err != wxSTREAM_NO_ERROR && err != wxSTREAM_EOF) {
1093         PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
1094     }
1095     else {
1096         // We use only strings for the streams, not unicode
1097         obj = PyString_FromStringAndSize((char*)buf.GetData(), buf.GetDataLen());
1098     }
1099     wxPyEndBlockThreads();
1100     return obj;
1101 }
1102
1103
1104 PyObject* wxPyInputStream::readlines(int sizehint) {
1105     PyObject* pylist;
1106
1107     // check if we have a real wxInputStream to work with
1108     if (!m_wxis) {
1109         wxPyBeginBlockThreads();
1110         PyErr_SetString(PyExc_IOError,"no valid C-wxInputStream");
1111         wxPyEndBlockThreads();
1112         return NULL;
1113     }
1114
1115     // init list
1116     wxPyBeginBlockThreads();
1117     pylist = PyList_New(0);
1118     if (!pylist) {
1119         wxPyBeginBlockThreads();
1120         PyErr_NoMemory();
1121         wxPyEndBlockThreads();
1122         return NULL;
1123     }
1124
1125     // read sizehint bytes or until EOF
1126     int i;
1127     for (i=0; (m_wxis->CanRead()) && ((sizehint < 0) || (i < sizehint));) {
1128         PyObject* s = this->readline();
1129         if (s == NULL) {
1130             wxPyBeginBlockThreads();
1131             Py_DECREF(pylist);
1132             wxPyEndBlockThreads();
1133             return NULL;
1134         }
1135         wxPyBeginBlockThreads();
1136         PyList_Append(pylist, s);
1137         i += PyString_Size(s);
1138         wxPyEndBlockThreads();
1139     }
1140
1141     // error check
1142     wxStreamError err = m_wxis->GetLastError();
1143     if (err != wxSTREAM_NO_ERROR && err != wxSTREAM_EOF) {
1144         wxPyBeginBlockThreads();
1145         Py_DECREF(pylist);
1146         PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
1147         wxPyEndBlockThreads();
1148         return NULL;
1149     }
1150
1151     return pylist;
1152 }
1153
1154
1155 void wxPyInputStream::seek(int offset, int whence) {
1156     if (m_wxis)
1157         m_wxis->SeekI(offset, wxSeekMode(whence));
1158 }
1159
1160 int wxPyInputStream::tell(){
1161     if (m_wxis)
1162         return m_wxis->TellI();
1163     else return 0;
1164 }
1165
1166
1167
1168
1169 wxPyCBInputStream::wxPyCBInputStream(PyObject *r, PyObject *s, PyObject *t, bool block)
1170     : wxInputStream(), m_read(r), m_seek(s), m_tell(t), m_block(block)
1171 {}
1172
1173
1174 wxPyCBInputStream::~wxPyCBInputStream() {
1175     if (m_block) wxPyBeginBlockThreads();
1176     Py_XDECREF(m_read);
1177     Py_XDECREF(m_seek);
1178     Py_XDECREF(m_tell);
1179     if (m_block) wxPyEndBlockThreads();
1180 }
1181
1182
1183 wxPyCBInputStream* wxPyCBInputStream::create(PyObject *py, bool block) {
1184     if (block) wxPyBeginBlockThreads();
1185
1186     PyObject* read = getMethod(py, "read");
1187     PyObject* seek = getMethod(py, "seek");
1188     PyObject* tell = getMethod(py, "tell");
1189
1190     if (!read) {
1191         PyErr_SetString(PyExc_TypeError, "Not a file-like object");
1192         Py_XDECREF(read);
1193         Py_XDECREF(seek);
1194         Py_XDECREF(tell);
1195         if (block) wxPyEndBlockThreads();
1196         return NULL;
1197     }
1198
1199     if (block) wxPyEndBlockThreads();
1200     return new wxPyCBInputStream(read, seek, tell, block);
1201 }
1202
1203
1204 wxPyCBInputStream* wxPyCBInputStream_create(PyObject *py, bool block) {
1205     return wxPyCBInputStream::create(py, block);
1206 }
1207
1208 PyObject* wxPyCBInputStream::getMethod(PyObject* py, char* name) {
1209     if (!PyObject_HasAttrString(py, name))
1210         return NULL;
1211     PyObject* o = PyObject_GetAttrString(py, name);
1212     if (!PyMethod_Check(o) && !PyCFunction_Check(o)) {
1213         Py_DECREF(o);
1214         return NULL;
1215     }
1216     return o;
1217 }
1218
1219
1220 size_t wxPyCBInputStream::GetSize() const {
1221     wxPyCBInputStream* self = (wxPyCBInputStream*)this; // cast off const
1222     if (m_seek && m_tell) {
1223         off_t temp = self->OnSysTell();
1224         off_t ret = self->OnSysSeek(0, wxFromEnd);
1225         self->OnSysSeek(temp, wxFromStart);
1226         return ret;
1227     }
1228     else
1229         return 0;
1230 }
1231
1232
1233 size_t wxPyCBInputStream::OnSysRead(void *buffer, size_t bufsize) {
1234     if (bufsize == 0)
1235         return 0;
1236
1237     wxPyBeginBlockThreads();
1238     PyObject* arglist = Py_BuildValue("(i)", bufsize);
1239     PyObject* result = PyEval_CallObject(m_read, arglist);
1240     Py_DECREF(arglist);
1241
1242     size_t o = 0;
1243     if ((result != NULL) && PyString_Check(result)) {
1244         o = PyString_Size(result);
1245         if (o == 0)
1246             m_lasterror = wxSTREAM_EOF;
1247         if (o > bufsize)
1248             o = bufsize;
1249         memcpy((char*)buffer, PyString_AsString(result), o);  // strings only, not unicode...
1250         Py_DECREF(result);
1251
1252     }
1253     else
1254         m_lasterror = wxSTREAM_READ_ERROR;
1255     wxPyEndBlockThreads();
1256     return o;
1257 }
1258
1259 size_t wxPyCBInputStream::OnSysWrite(const void *buffer, size_t bufsize) {
1260     m_lasterror = wxSTREAM_WRITE_ERROR;
1261     return 0;
1262 }
1263
1264 off_t wxPyCBInputStream::OnSysSeek(off_t off, wxSeekMode mode) {
1265     wxPyBeginBlockThreads();
1266 #ifdef _LARGE_FILES
1267     // off_t is a 64-bit value...
1268     PyObject* arglist = Py_BuildValue("(Li)", off, mode);
1269 #else
1270     PyObject* arglist = Py_BuildValue("(ii)", off, mode);
1271 #endif
1272     PyObject* result = PyEval_CallObject(m_seek, arglist);
1273     Py_DECREF(arglist);
1274     Py_XDECREF(result);
1275     wxPyEndBlockThreads();
1276     return OnSysTell();
1277 }
1278
1279
1280 off_t wxPyCBInputStream::OnSysTell() const {
1281     wxPyBeginBlockThreads();
1282     PyObject* arglist = Py_BuildValue("()");
1283     PyObject* result = PyEval_CallObject(m_tell, arglist);
1284     Py_DECREF(arglist);
1285     off_t o = 0;
1286     if (result != NULL) {
1287 #ifdef _LARGE_FILES
1288         if (PyLong_Check(result))
1289             o = PyLong_AsLongLong(result);
1290         else
1291 #else
1292         o = PyInt_AsLong(result);
1293 #endif
1294         Py_DECREF(result);
1295     };
1296     wxPyEndBlockThreads();
1297     return o;
1298 }
1299
1300 //----------------------------------------------------------------------
1301
1302 IMPLEMENT_ABSTRACT_CLASS(wxPyCallback, wxObject);
1303
1304 wxPyCallback::wxPyCallback(PyObject* func) {
1305     m_func = func;
1306     Py_INCREF(m_func);
1307 }
1308
1309 wxPyCallback::wxPyCallback(const wxPyCallback& other) {
1310     m_func = other.m_func;
1311     Py_INCREF(m_func);
1312 }
1313
1314 wxPyCallback::~wxPyCallback() {
1315     wxPyBeginBlockThreads();
1316     Py_DECREF(m_func);
1317     wxPyEndBlockThreads();
1318 }
1319
1320
1321
1322 // This function is used for all events destined for Python event handlers.
1323 void wxPyCallback::EventThunker(wxEvent& event) {
1324     wxPyCallback*   cb = (wxPyCallback*)event.m_callbackUserData;
1325     PyObject*       func = cb->m_func;
1326     PyObject*       result;
1327     PyObject*       arg;
1328     PyObject*       tuple;
1329     bool            checkSkip = False;
1330
1331     wxPyBeginBlockThreads();
1332     wxString className = event.GetClassInfo()->GetClassName();
1333
1334     // If the event is one of these types then pass the original
1335     // event object instead of the one passed to us.
1336     if ( className == wxT("wxPyEvent") ) {
1337         arg =       ((wxPyEvent*)&event)->GetSelf();
1338         checkSkip = ((wxPyEvent*)&event)->GetCloned();
1339     }
1340     else if ( className == wxT("wxPyCommandEvent") ) {
1341         arg =       ((wxPyCommandEvent*)&event)->GetSelf();
1342         checkSkip = ((wxPyCommandEvent*)&event)->GetCloned();
1343     }
1344     else {
1345         arg = wxPyConstructObject((void*)&event, className);
1346     }
1347
1348     if (!arg) {
1349         PyErr_Print();
1350     } else {
1351         // Call the event handler, passing the event object
1352         tuple = PyTuple_New(1);
1353         PyTuple_SET_ITEM(tuple, 0, arg);  // steals ref to arg
1354         result = PyEval_CallObject(func, tuple);
1355         if ( result ) {
1356             Py_DECREF(result);   // result is ignored, but we still need to decref it
1357             PyErr_Clear();       // Just in case...
1358         } else {
1359             PyErr_Print();
1360         }
1361
1362         if ( checkSkip ) {
1363             // if the event object was one of our special types and
1364             // it had been cloned, then we need to extract the Skipped
1365             // value from the original and set it in the clone.
1366             result = PyObject_CallMethod(arg, "GetSkipped", "");
1367             if ( result ) {
1368                 event.Skip(PyInt_AsLong(result));
1369                 Py_DECREF(result);
1370             } else {
1371                 PyErr_Print();
1372             }
1373         }
1374         Py_DECREF(tuple);
1375     }
1376     wxPyEndBlockThreads();
1377 }
1378
1379
1380 //----------------------------------------------------------------------
1381
1382 wxPyCallbackHelper::wxPyCallbackHelper(const wxPyCallbackHelper& other) {
1383       m_lastFound = NULL;
1384       m_self = other.m_self;
1385       m_class = other.m_class;
1386       if (m_self) {
1387           Py_INCREF(m_self);
1388           Py_INCREF(m_class);
1389       }
1390 }
1391
1392
1393 void wxPyCallbackHelper::setSelf(PyObject* self, PyObject* klass, int incref) {
1394     m_self = self;
1395     m_class = klass;
1396     m_incRef = incref;
1397     if (incref) {
1398         Py_INCREF(m_self);
1399         Py_INCREF(m_class);
1400     }
1401 }
1402
1403
1404 #if PYTHON_API_VERSION >= 1011
1405
1406 // Prior to Python 2.2 PyMethod_GetClass returned the class object
1407 // in which the method was defined.  Starting with 2.2 it returns
1408 // "class that asked for the method" which seems totally bogus to me
1409 // but apprently it fixes some obscure problem waiting to happen in
1410 // Python.  Since the API was not documented Guido and the gang felt
1411 // safe in changing it.  Needless to say that totally screwed up the
1412 // logic below in wxPyCallbackHelper::findCallback, hence this icky
1413 // code to find the class where the method is actually defined...
1414
1415 static
1416 PyObject* PyFindClassWithAttr(PyObject *klass, PyObject *name)
1417 {
1418     int i, n;
1419
1420     if (PyType_Check(klass)) {      // new style classes
1421         // This code is borrowed/adapted from _PyType_Lookup in typeobject.c
1422         PyTypeObject* type = (PyTypeObject*)klass;
1423         PyObject *mro, *res, *base, *dict;
1424         /* Look in tp_dict of types in MRO */
1425         mro = type->tp_mro;
1426         assert(PyTuple_Check(mro));
1427         n = PyTuple_GET_SIZE(mro);
1428         for (i = 0; i < n; i++) {
1429             base = PyTuple_GET_ITEM(mro, i);
1430             if (PyClass_Check(base))
1431                 dict = ((PyClassObject *)base)->cl_dict;
1432             else {
1433                 assert(PyType_Check(base));
1434                 dict = ((PyTypeObject *)base)->tp_dict;
1435             }
1436             assert(dict && PyDict_Check(dict));
1437             res = PyDict_GetItem(dict, name);
1438             if (res != NULL)
1439                 return base;
1440         }
1441         return NULL;
1442     }
1443
1444     else if (PyClass_Check(klass)) { // old style classes
1445         // This code is borrowed/adapted from class_lookup in classobject.c
1446         PyClassObject* cp = (PyClassObject*)klass;
1447         PyObject *value = PyDict_GetItem(cp->cl_dict, name);
1448         if (value != NULL) {
1449             return (PyObject*)cp;
1450         }
1451         n = PyTuple_Size(cp->cl_bases);
1452         for (i = 0; i < n; i++) {
1453             PyObject* base = PyTuple_GetItem(cp->cl_bases, i);
1454             PyObject *v = PyFindClassWithAttr(base, name);
1455             if (v != NULL)
1456                 return v;
1457         }
1458         return NULL;
1459     }
1460     return NULL;
1461 }
1462 #endif
1463
1464
1465 static
1466 PyObject* PyMethod_GetDefiningClass(PyObject* method, const char* name)
1467 {
1468     PyObject* mgc = PyMethod_GET_CLASS(method);
1469
1470 #if PYTHON_API_VERSION <= 1010    // prior to Python 2.2, the easy way
1471     return mgc;
1472 #else                             // 2.2 and after, the hard way...
1473
1474     PyObject* nameo = PyString_FromString(name);
1475     PyObject* klass = PyFindClassWithAttr(mgc, nameo);
1476     Py_DECREF(nameo);
1477     return klass;
1478 #endif
1479 }
1480
1481
1482
1483 bool wxPyCallbackHelper::findCallback(const char* name) const {
1484     wxPyCallbackHelper* self = (wxPyCallbackHelper*)this; // cast away const
1485     self->m_lastFound = NULL;
1486
1487     // If the object (m_self) has an attibute of the given name...
1488     if (m_self && PyObject_HasAttrString(m_self, (char*)name)) {
1489         PyObject *method, *klass;
1490         method = PyObject_GetAttrString(m_self, (char*)name);
1491
1492         // ...and if that attribute is a method, and if that method's class is
1493         // not from a base class...
1494         if (PyMethod_Check(method) &&
1495             (klass = PyMethod_GetDefiningClass(method, (char*)name)) != NULL &&
1496             ((klass == m_class) || PyObject_IsSubclass(klass, m_class))) {
1497
1498             // ...then we'll save a pointer to the method so callCallback can call it.
1499             self->m_lastFound = method;
1500         }
1501         else {
1502             Py_DECREF(method);
1503         }
1504     }
1505     return m_lastFound != NULL;
1506 }
1507
1508
1509 int wxPyCallbackHelper::callCallback(PyObject* argTuple) const {
1510     PyObject*   result;
1511     int         retval = False;
1512
1513     result = callCallbackObj(argTuple);
1514     if (result) {                       // Assumes an integer return type...
1515         retval = PyInt_AsLong(result);
1516         Py_DECREF(result);
1517         PyErr_Clear();                  // forget about it if it's not...
1518     }
1519     return retval;
1520 }
1521
1522 // Invoke the Python callable object, returning the raw PyObject return
1523 // value.  Caller should DECREF the return value and also manage the GIL.
1524 PyObject* wxPyCallbackHelper::callCallbackObj(PyObject* argTuple) const {
1525     PyObject* result;
1526
1527     // Save a copy of the pointer in case the callback generates another
1528     // callback.  In that case m_lastFound will have a different value when
1529     // it gets back here...
1530     PyObject* method = m_lastFound;
1531
1532     result = PyEval_CallObject(method, argTuple);
1533     Py_DECREF(argTuple);
1534     Py_DECREF(method);
1535     if (!result) {
1536         PyErr_Print();
1537     }
1538     return result;
1539 }
1540
1541
1542 void wxPyCBH_setCallbackInfo(wxPyCallbackHelper& cbh, PyObject* self, PyObject* klass, int incref) {
1543     cbh.setSelf(self, klass, incref);
1544 }
1545
1546 bool wxPyCBH_findCallback(const wxPyCallbackHelper& cbh, const char* name) {
1547     return cbh.findCallback(name);
1548 }
1549
1550 int  wxPyCBH_callCallback(const wxPyCallbackHelper& cbh, PyObject* argTuple) {
1551     return cbh.callCallback(argTuple);
1552 }
1553
1554 PyObject* wxPyCBH_callCallbackObj(const wxPyCallbackHelper& cbh, PyObject* argTuple) {
1555     return cbh.callCallbackObj(argTuple);
1556 }
1557
1558
1559 void wxPyCBH_delete(wxPyCallbackHelper* cbh) {
1560     if (cbh->m_incRef) {
1561         wxPyBeginBlockThreads();
1562         Py_XDECREF(cbh->m_self);
1563         Py_XDECREF(cbh->m_class);
1564         wxPyEndBlockThreads();
1565     }
1566 }
1567
1568 //---------------------------------------------------------------------------
1569 //---------------------------------------------------------------------------
1570 // These event classes can be derived from in Python and passed through the event
1571 // system without losing anything.  They do this by keeping a reference to
1572 // themselves and some special case handling in wxPyCallback::EventThunker.
1573
1574
1575 wxPyEvtSelfRef::wxPyEvtSelfRef() {
1576     //m_self = Py_None;         // **** We don't do normal ref counting to prevent
1577     //Py_INCREF(m_self);        //      circular loops...
1578     m_cloned = False;
1579 }
1580
1581 wxPyEvtSelfRef::~wxPyEvtSelfRef() {
1582     wxPyBeginBlockThreads();
1583     if (m_cloned)
1584         Py_DECREF(m_self);
1585     wxPyEndBlockThreads();
1586 }
1587
1588 void wxPyEvtSelfRef::SetSelf(PyObject* self, bool clone) {
1589     wxPyBeginBlockThreads();
1590     if (m_cloned)
1591         Py_DECREF(m_self);
1592     m_self = self;
1593     if (clone) {
1594         Py_INCREF(m_self);
1595         m_cloned = True;
1596     }
1597     wxPyEndBlockThreads();
1598 }
1599
1600 PyObject* wxPyEvtSelfRef::GetSelf() const {
1601     Py_INCREF(m_self);
1602     return m_self;
1603 }
1604
1605
1606 IMPLEMENT_ABSTRACT_CLASS(wxPyEvent, wxEvent);
1607 IMPLEMENT_ABSTRACT_CLASS(wxPyCommandEvent, wxCommandEvent);
1608
1609
1610 wxPyEvent::wxPyEvent(int winid, wxEventType commandType)
1611     : wxEvent(winid, commandType) {
1612 }
1613
1614
1615 wxPyEvent::wxPyEvent(const wxPyEvent& evt)
1616     : wxEvent(evt)
1617 {
1618     SetSelf(evt.m_self, True);
1619 }
1620
1621
1622 wxPyEvent::~wxPyEvent() {
1623 }
1624
1625
1626 wxPyCommandEvent::wxPyCommandEvent(wxEventType commandType, int id)
1627     : wxCommandEvent(commandType, id) {
1628 }
1629
1630
1631 wxPyCommandEvent::wxPyCommandEvent(const wxPyCommandEvent& evt)
1632     : wxCommandEvent(evt)
1633 {
1634     SetSelf(evt.m_self, True);
1635 }
1636
1637
1638 wxPyCommandEvent::~wxPyCommandEvent() {
1639 }
1640
1641
1642
1643
1644
1645 //---------------------------------------------------------------------------
1646 //---------------------------------------------------------------------------
1647 // Convert a wxList to a Python List, only works for lists of wxObjects
1648
1649 PyObject* wxPy_ConvertList(wxListBase* listbase) {
1650     wxList*     list = (wxList*)listbase;  // this is probably bad...
1651     PyObject*   pyList;
1652     PyObject*   pyObj;
1653     wxObject*   wxObj;
1654     wxNode*     node = list->GetFirst();
1655
1656     wxPyBeginBlockThreads();
1657     pyList = PyList_New(0);
1658     while (node) {
1659         wxObj = node->GetData();
1660         pyObj = wxPyMake_wxObject(wxObj);
1661         PyList_Append(pyList, pyObj);
1662         node = node->GetNext();
1663     }
1664     wxPyEndBlockThreads();
1665     return pyList;
1666 }
1667
1668 //----------------------------------------------------------------------
1669
1670 long wxPyGetWinHandle(wxWindow* win) {
1671 #ifdef __WXMSW__
1672     return (long)win->GetHandle();
1673 #endif
1674
1675     // Find and return the actual X-Window.
1676 #ifdef __WXGTK__
1677     if (win->m_wxwindow) {
1678 #ifdef __WXGTK20__
1679         return (long) GDK_WINDOW_XWINDOW(GTK_PIZZA(win->m_wxwindow)->bin_window);
1680 #else
1681         GdkWindowPrivate* bwin = (GdkWindowPrivate*)GTK_PIZZA(win->m_wxwindow)->bin_window;
1682         if (bwin) {
1683             return (long)bwin->xwindow;
1684         }
1685 #endif
1686     }
1687 #endif
1688     return 0;
1689 }
1690
1691 //----------------------------------------------------------------------
1692 // Some helper functions for typemaps in my_typemaps.i, so they won't be
1693 // included in every file over and over again...
1694
1695 #if PYTHON_API_VERSION >= 1009
1696     static char* wxStringErrorMsg = "String or Unicode type required";
1697 #else
1698     static char* wxStringErrorMsg = "String type required";
1699 #endif
1700
1701
1702 wxString* wxString_in_helper(PyObject* source) {
1703     wxString* target;
1704 #if PYTHON_API_VERSION >= 1009  // Have Python unicode API
1705     if (!PyString_Check(source) && !PyUnicode_Check(source)) {
1706         PyErr_SetString(PyExc_TypeError, wxStringErrorMsg);
1707         return NULL;
1708     }
1709 #if wxUSE_UNICODE
1710     if (PyUnicode_Check(source)) {
1711         target = new wxString();
1712         size_t len = PyUnicode_GET_SIZE(source);
1713         if (len) {
1714             PyUnicode_AsWideChar((PyUnicodeObject*)source, target->GetWriteBuf(len), len);
1715             target->UngetWriteBuf();
1716         }
1717     } else {
1718         // It is a string, get pointers to it and transform to unicode
1719         char* tmpPtr; int tmpSize;
1720         PyString_AsStringAndSize(source, &tmpPtr, &tmpSize);
1721         target = new wxString(tmpPtr, *wxConvCurrent, tmpSize);
1722     }
1723 #else
1724     char* tmpPtr; int tmpSize;
1725     if (PyString_AsStringAndSize(source, &tmpPtr, &tmpSize) == -1) {
1726         PyErr_SetString(PyExc_TypeError, "Unable to convert string");
1727         return NULL;
1728     }
1729     target = new wxString(tmpPtr, tmpSize);
1730 #endif // wxUSE_UNICODE
1731
1732 #else  // No Python unicode API (1.5.2)
1733     if (!PyString_Check(source)) {
1734         PyErr_SetString(PyExc_TypeError, wxStringErrorMsg);
1735         return NULL;
1736     }
1737     target = new wxString(PyString_AS_STRING(source), PyString_GET_SIZE(source));
1738 #endif
1739     return target;
1740 }
1741
1742
1743 // Similar to above except doesn't use "new" and doesn't set an exception
1744 wxString Py2wxString(PyObject* source)
1745 {
1746     wxString target;
1747     bool     doDecRef = False;
1748
1749 #if PYTHON_API_VERSION >= 1009  // Have Python unicode API
1750     if (!PyString_Check(source) && !PyUnicode_Check(source)) {
1751         // Convert to String if not one already...  (TODO: Unicode too?)
1752         source = PyObject_Str(source);
1753         doDecRef = True;
1754     }
1755
1756 #if wxUSE_UNICODE
1757     if (PyUnicode_Check(source)) {
1758         size_t len = PyUnicode_GET_SIZE(source);
1759         if (len) {
1760             PyUnicode_AsWideChar((PyUnicodeObject*)source, target.GetWriteBuf(len), len);
1761             target.UngetWriteBuf();
1762         }
1763     } else {
1764         // It is a string, get pointers to it and transform to unicode
1765         char* tmpPtr; int tmpSize;
1766         PyString_AsStringAndSize(source, &tmpPtr, &tmpSize);
1767         target = wxString(tmpPtr, *wxConvCurrent, tmpSize);
1768     }
1769 #else
1770     char* tmpPtr; int tmpSize;
1771     PyString_AsStringAndSize(source, &tmpPtr, &tmpSize);
1772     target = wxString(tmpPtr, tmpSize);
1773 #endif // wxUSE_UNICODE
1774
1775 #else  // No Python unicode API (1.5.2)
1776     if (!PyString_Check(source)) {
1777         // Convert to String if not one already...
1778         source = PyObject_Str(source);
1779         doDecRef = True;
1780     }
1781     target = wxString(PyString_AS_STRING(source), PyString_GET_SIZE(source));
1782 #endif
1783
1784     if (doDecRef)
1785         Py_DECREF(source);
1786     return target;
1787 }
1788
1789
1790 // Make either a Python String or Unicode object, depending on build mode
1791 PyObject* wx2PyString(const wxString& src)
1792 {
1793     PyObject* str;
1794 #if wxUSE_UNICODE
1795     str = PyUnicode_FromWideChar(src.c_str(), src.Len());
1796 #else
1797     str = PyString_FromStringAndSize(src.c_str(), src.Len());
1798 #endif
1799     return str;
1800 }
1801
1802
1803 //----------------------------------------------------------------------
1804
1805
1806 byte* byte_LIST_helper(PyObject* source) {
1807     if (!PyList_Check(source)) {
1808         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
1809         return NULL;
1810     }
1811     int count = PyList_Size(source);
1812     byte* temp = new byte[count];
1813     if (! temp) {
1814         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
1815         return NULL;
1816     }
1817     for (int x=0; x<count; x++) {
1818         PyObject* o = PyList_GetItem(source, x);
1819         if (! PyInt_Check(o)) {
1820             PyErr_SetString(PyExc_TypeError, "Expected a list of integers.");
1821             return NULL;
1822         }
1823         temp[x] = (byte)PyInt_AsLong(o);
1824     }
1825     return temp;
1826 }
1827
1828
1829 int* int_LIST_helper(PyObject* source) {
1830     if (!PyList_Check(source)) {
1831         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
1832         return NULL;
1833     }
1834     int count = PyList_Size(source);
1835     int* temp = new int[count];
1836     if (! temp) {
1837         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
1838         return NULL;
1839     }
1840     for (int x=0; x<count; x++) {
1841         PyObject* o = PyList_GetItem(source, x);
1842         if (! PyInt_Check(o)) {
1843             PyErr_SetString(PyExc_TypeError, "Expected a list of integers.");
1844             return NULL;
1845         }
1846         temp[x] = PyInt_AsLong(o);
1847     }
1848     return temp;
1849 }
1850
1851
1852 long* long_LIST_helper(PyObject* source) {
1853     if (!PyList_Check(source)) {
1854         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
1855         return NULL;
1856     }
1857     int count = PyList_Size(source);
1858     long* temp = new long[count];
1859     if (! temp) {
1860         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
1861         return NULL;
1862     }
1863     for (int x=0; x<count; x++) {
1864         PyObject* o = PyList_GetItem(source, x);
1865         if (! PyInt_Check(o)) {
1866             PyErr_SetString(PyExc_TypeError, "Expected a list of integers.");
1867             return NULL;
1868         }
1869         temp[x] = PyInt_AsLong(o);
1870     }
1871     return temp;
1872 }
1873
1874
1875 char** string_LIST_helper(PyObject* source) {
1876     if (!PyList_Check(source)) {
1877         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
1878         return NULL;
1879     }
1880     int count = PyList_Size(source);
1881     char** temp = new char*[count];
1882     if (! temp) {
1883         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
1884         return NULL;
1885     }
1886     for (int x=0; x<count; x++) {
1887         PyObject* o = PyList_GetItem(source, x);
1888         if (! PyString_Check(o)) {
1889             PyErr_SetString(PyExc_TypeError, "Expected a list of strings.");
1890             return NULL;
1891         }
1892         temp[x] = PyString_AsString(o);
1893     }
1894     return temp;
1895 }
1896
1897 //--------------------------------
1898 // Part of patch from Tim Hochberg
1899 static inline bool wxPointFromObjects(PyObject* o1, PyObject* o2, wxPoint* point) {
1900     if (PyInt_Check(o1) && PyInt_Check(o2)) {
1901         point->x = PyInt_AS_LONG(o1);
1902         point->y = PyInt_AS_LONG(o2);
1903         return True;
1904     }
1905     if (PyFloat_Check(o1) && PyFloat_Check(o2)) {
1906         point->x = (int)PyFloat_AS_DOUBLE(o1);
1907         point->y = (int)PyFloat_AS_DOUBLE(o2);
1908         return True;
1909     }
1910     if (wxPySwigInstance_Check(o1) || wxPySwigInstance_Check(o2)) {  // TODO: Why???
1911         // Disallow instances because they can cause havok
1912         return False;
1913     }
1914     if (PyNumber_Check(o1) && PyNumber_Check(o2)) {
1915         // I believe this excludes instances, so this should be safe without INCREFFing o1 and o2
1916         point->x = PyInt_AsLong(o1);
1917         point->y = PyInt_AsLong(o2);
1918         return True;
1919     }
1920     return False;
1921 }
1922
1923
1924 wxPoint* wxPoint_LIST_helper(PyObject* source, int *count) {
1925     // Putting all of the declarations here allows
1926     // us to put the error handling all in one place.
1927     int x;
1928     wxPoint* temp;
1929     PyObject *o, *o1, *o2;
1930     bool isFast = PyList_Check(source) || PyTuple_Check(source);
1931
1932     if (!PySequence_Check(source)) {
1933         goto error0;
1934     }
1935
1936     // The length of the sequence is returned in count.
1937     *count = PySequence_Length(source);
1938     if (*count < 0) {
1939         goto error0;
1940     }
1941
1942     temp = new wxPoint[*count];
1943     if (!temp) {
1944         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
1945         return NULL;
1946     }
1947     for (x=0; x<*count; x++) {
1948         // Get an item: try fast way first.
1949         if (isFast) {
1950             o = PySequence_Fast_GET_ITEM(source, x);
1951         }
1952         else {
1953             o = PySequence_GetItem(source, x);
1954             if (o == NULL) {
1955                 goto error1;
1956             }
1957         }
1958
1959         // Convert o to wxPoint.
1960         if ((PyTuple_Check(o) && PyTuple_GET_SIZE(o) == 2) ||
1961             (PyList_Check(o) && PyList_GET_SIZE(o) == 2)) {
1962             o1 = PySequence_Fast_GET_ITEM(o, 0);
1963             o2 = PySequence_Fast_GET_ITEM(o, 1);
1964             if (!wxPointFromObjects(o1, o2, &temp[x])) {
1965                 goto error2;
1966             }
1967         }
1968         else if (wxPySwigInstance_Check(o)) {
1969             wxPoint* pt;
1970             if (! wxPyConvertSwigPtr(o, (void **)&pt, wxT("wxPoint"))) {
1971                 goto error2;
1972             }
1973             temp[x] = *pt;
1974         }
1975         else if (PySequence_Check(o) && PySequence_Length(o) == 2) {
1976             o1 = PySequence_GetItem(o, 0);
1977             o2 = PySequence_GetItem(o, 1);
1978             if (!wxPointFromObjects(o1, o2, &temp[x])) {
1979                 goto error3;
1980             }
1981             Py_DECREF(o1);
1982             Py_DECREF(o2);
1983         }
1984         else {
1985             goto error2;
1986         }
1987         // Clean up.
1988         if (!isFast)
1989             Py_DECREF(o);
1990     }
1991     return temp;
1992
1993 error3:
1994     Py_DECREF(o1);
1995     Py_DECREF(o2);
1996 error2:
1997     if (!isFast)
1998         Py_DECREF(o);
1999 error1:
2000     delete [] temp;
2001 error0:
2002     PyErr_SetString(PyExc_TypeError, "Expected a sequence of length-2 sequences or wxPoints.");
2003     return NULL;
2004 }
2005 // end of patch
2006 //------------------------------
2007
2008
2009 wxBitmap** wxBitmap_LIST_helper(PyObject* source) {
2010     if (!PyList_Check(source)) {
2011         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2012         return NULL;
2013     }
2014     int count = PyList_Size(source);
2015     wxBitmap** temp = new wxBitmap*[count];
2016     if (! temp) {
2017         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2018         return NULL;
2019     }
2020     for (int x=0; x<count; x++) {
2021         PyObject* o = PyList_GetItem(source, x);
2022         if (wxPySwigInstance_Check(o)) {
2023             wxBitmap*    pt;
2024             if (! wxPyConvertSwigPtr(o, (void **) &pt, wxT("wxBitmap"))) {
2025                 PyErr_SetString(PyExc_TypeError,"Expected wxBitmap.");
2026                 return NULL;
2027             }
2028             temp[x] = pt;
2029         }
2030         else {
2031             PyErr_SetString(PyExc_TypeError, "Expected a list of wxBitmaps.");
2032             return NULL;
2033         }
2034     }
2035     return temp;
2036 }
2037
2038
2039
2040 wxString* wxString_LIST_helper(PyObject* source) {
2041     if (!PyList_Check(source)) {
2042         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2043         return NULL;
2044     }
2045     int count = PyList_Size(source);
2046     wxString* temp = new wxString[count];
2047     if (! temp) {
2048         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2049         return NULL;
2050     }
2051     for (int x=0; x<count; x++) {
2052         PyObject* o = PyList_GetItem(source, x);
2053 #if PYTHON_API_VERSION >= 1009
2054         if (! PyString_Check(o) && ! PyUnicode_Check(o)) {
2055             PyErr_SetString(PyExc_TypeError, "Expected a list of string or unicode objects.");
2056             return NULL;
2057         }
2058 #else
2059         if (! PyString_Check(o)) {
2060             PyErr_SetString(PyExc_TypeError, "Expected a list of strings.");
2061             return NULL;
2062         }
2063 #endif
2064
2065         wxString* pStr = wxString_in_helper(o);
2066         temp[x] = *pStr;
2067         delete pStr;
2068     }
2069     return temp;
2070 }
2071
2072
2073 wxAcceleratorEntry* wxAcceleratorEntry_LIST_helper(PyObject* source) {
2074     if (!PyList_Check(source)) {
2075         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2076         return NULL;
2077     }
2078     int count                = PyList_Size(source);
2079     wxAcceleratorEntry* temp = new wxAcceleratorEntry[count];
2080     if (! temp) {
2081         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2082         return NULL;
2083     }
2084     for (int x=0; x<count; x++) {
2085         PyObject* o = PyList_GetItem(source, x);
2086         if (wxPySwigInstance_Check(o)) {
2087             wxAcceleratorEntry* ae;
2088             if (! wxPyConvertSwigPtr(o, (void **) &ae, wxT("wxAcceleratorEntry"))) {
2089                 PyErr_SetString(PyExc_TypeError,"Expected wxAcceleratorEntry.");
2090                 return NULL;
2091             }
2092             temp[x] = *ae;
2093         }
2094         else if (PyTuple_Check(o)) {
2095             PyObject* o1 = PyTuple_GetItem(o, 0);
2096             PyObject* o2 = PyTuple_GetItem(o, 1);
2097             PyObject* o3 = PyTuple_GetItem(o, 2);
2098             temp[x].Set(PyInt_AsLong(o1), PyInt_AsLong(o2), PyInt_AsLong(o3));
2099         }
2100         else {
2101             PyErr_SetString(PyExc_TypeError, "Expected a list of 3-tuples or wxAcceleratorEntry objects.");
2102             return NULL;
2103         }
2104     }
2105     return temp;
2106 }
2107
2108
2109 wxPen** wxPen_LIST_helper(PyObject* source) {
2110     if (!PyList_Check(source)) {
2111         PyErr_SetString(PyExc_TypeError, "Expected a list object.");
2112         return NULL;
2113     }
2114     int count = PyList_Size(source);
2115     wxPen** temp = new wxPen*[count];
2116     if (!temp) {
2117         PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
2118         return NULL;
2119     }
2120     for (int x=0; x<count; x++) {
2121         PyObject* o = PyList_GetItem(source, x);
2122         if (wxPySwigInstance_Check(o)) {
2123             wxPen*  pt;
2124             if (! wxPyConvertSwigPtr(o, (void **)&pt, wxT("wxPen"))) {
2125                 delete temp;
2126                 PyErr_SetString(PyExc_TypeError,"Expected wxPen.");
2127                 return NULL;
2128             }
2129             temp[x] = pt;
2130         }
2131         else {
2132             delete temp;
2133             PyErr_SetString(PyExc_TypeError, "Expected a list of wxPens.");
2134             return NULL;
2135         }
2136     }
2137     return temp;
2138 }
2139
2140
2141 bool wxPy2int_seq_helper(PyObject* source, int* i1, int* i2) {
2142     bool isFast = PyList_Check(source) || PyTuple_Check(source);
2143     PyObject *o1, *o2;
2144
2145     if (!PySequence_Check(source) || PySequence_Length(source) != 2)
2146         return False;
2147
2148     if (isFast) {
2149         o1 = PySequence_Fast_GET_ITEM(source, 0);
2150         o2 = PySequence_Fast_GET_ITEM(source, 1);
2151     }
2152     else {
2153         o1 = PySequence_GetItem(source, 0);
2154         o2 = PySequence_GetItem(source, 1);
2155     }
2156
2157     *i1 = PyInt_AsLong(o1);
2158     *i2 = PyInt_AsLong(o2);
2159
2160     if (! isFast) {
2161         Py_DECREF(o1);
2162         Py_DECREF(o2);
2163     }
2164     return True;
2165 }
2166
2167
2168 bool wxPy4int_seq_helper(PyObject* source, int* i1, int* i2, int* i3, int* i4) {
2169     bool isFast = PyList_Check(source) || PyTuple_Check(source);
2170     PyObject *o1, *o2, *o3, *o4;
2171
2172     if (!PySequence_Check(source) || PySequence_Length(source) != 4)
2173         return False;
2174
2175     if (isFast) {
2176         o1 = PySequence_Fast_GET_ITEM(source, 0);
2177         o2 = PySequence_Fast_GET_ITEM(source, 1);
2178         o3 = PySequence_Fast_GET_ITEM(source, 2);
2179         o4 = PySequence_Fast_GET_ITEM(source, 3);
2180     }
2181     else {
2182         o1 = PySequence_GetItem(source, 0);
2183         o2 = PySequence_GetItem(source, 1);
2184         o3 = PySequence_GetItem(source, 2);
2185         o4 = PySequence_GetItem(source, 3);
2186     }
2187
2188     *i1 = PyInt_AsLong(o1);
2189     *i2 = PyInt_AsLong(o2);
2190     *i3 = PyInt_AsLong(o3);
2191     *i4 = PyInt_AsLong(o4);
2192
2193     if (! isFast) {
2194         Py_DECREF(o1);
2195         Py_DECREF(o2);
2196         Py_DECREF(o3);
2197         Py_DECREF(o4);
2198     }
2199     return True;
2200 }
2201
2202
2203 //----------------------------------------------------------------------
2204
2205 bool wxPySimple_typecheck(PyObject* source, const wxChar* classname, int seqLen)
2206 {
2207     void* ptr;
2208
2209     if (wxPySwigInstance_Check(source) &&
2210         wxPyConvertSwigPtr(source, (void **)&ptr, classname))
2211         return True;
2212
2213     PyErr_Clear();
2214     if (PySequence_Check(source) && PySequence_Length(source) == seqLen)
2215         return True;
2216
2217     return False;
2218 }
2219
2220 bool wxSize_helper(PyObject* source, wxSize** obj)
2221 {
2222     return wxPyTwoIntItem_helper(source, obj, wxT("wxSize"));
2223 }
2224
2225
2226 bool wxPoint_helper(PyObject* source, wxPoint** obj)
2227 {
2228     return wxPyTwoIntItem_helper(source, obj, wxT("wxPoint"));
2229 }
2230
2231
2232
2233 bool wxRealPoint_helper(PyObject* source, wxRealPoint** obj) {
2234
2235     // If source is an object instance then it may already be the right type
2236     if (wxPySwigInstance_Check(source)) {
2237         wxRealPoint* ptr;
2238         if (! wxPyConvertSwigPtr(source, (void **)&ptr, wxT("wxRealPoint")))
2239             goto error;
2240         *obj = ptr;
2241         return True;
2242     }
2243     // otherwise a 2-tuple of floats is expected
2244     else if (PySequence_Check(source) && PyObject_Length(source) == 2) {
2245         PyObject* o1 = PySequence_GetItem(source, 0);
2246         PyObject* o2 = PySequence_GetItem(source, 1);
2247         if (!PyNumber_Check(o1) || !PyNumber_Check(o2)) {
2248             Py_DECREF(o1);
2249             Py_DECREF(o2);
2250             goto error;
2251         }
2252         **obj = wxRealPoint(PyFloat_AsDouble(o1), PyFloat_AsDouble(o2));
2253         Py_DECREF(o1);
2254         Py_DECREF(o2);
2255         return True;
2256     }
2257
2258  error:
2259     PyErr_SetString(PyExc_TypeError, "Expected a 2-tuple of floats or a wxRealPoint object.");
2260     return False;
2261 }
2262
2263
2264
2265 bool wxRect_helper(PyObject* source, wxRect** obj) {
2266
2267     // If source is an object instance then it may already be the right type
2268     if (wxPySwigInstance_Check(source)) {
2269         wxRect* ptr;
2270         if (! wxPyConvertSwigPtr(source, (void **)&ptr, wxT("wxRect")))
2271             goto error;
2272         *obj = ptr;
2273         return True;
2274     }
2275     // otherwise a 4-tuple of integers is expected
2276     else if (PySequence_Check(source) && PyObject_Length(source) == 4) {
2277         PyObject* o1 = PySequence_GetItem(source, 0);
2278         PyObject* o2 = PySequence_GetItem(source, 1);
2279         PyObject* o3 = PySequence_GetItem(source, 2);
2280         PyObject* o4 = PySequence_GetItem(source, 3);
2281         if (!PyNumber_Check(o1) || !PyNumber_Check(o2) ||
2282             !PyNumber_Check(o3) || !PyNumber_Check(o4)) {
2283             Py_DECREF(o1);
2284             Py_DECREF(o2);
2285             Py_DECREF(o3);
2286             Py_DECREF(o4);
2287             goto error;
2288         }
2289         **obj = wxRect(PyInt_AsLong(o1), PyInt_AsLong(o2),
2290                        PyInt_AsLong(o3), PyInt_AsLong(o4));
2291         Py_DECREF(o1);
2292         Py_DECREF(o2);
2293         Py_DECREF(o3);
2294         Py_DECREF(o4);
2295         return True;
2296     }
2297
2298  error:
2299     PyErr_SetString(PyExc_TypeError, "Expected a 4-tuple of integers or a wxRect object.");
2300     return False;
2301 }
2302
2303
2304
2305 bool wxColour_helper(PyObject* source, wxColour** obj) {
2306
2307     // If source is an object instance then it may already be the right type
2308     if (wxPySwigInstance_Check(source)) {
2309         wxColour* ptr;
2310         if (! wxPyConvertSwigPtr(source, (void **)&ptr, wxT("wxColour")))
2311             goto error;
2312         *obj = ptr;
2313         return True;
2314     }
2315     // otherwise check for a string
2316     else if (PyString_Check(source) || PyUnicode_Check(source)) {
2317         wxString spec = Py2wxString(source);
2318         if (spec.GetChar(0) == '#' && spec.Length() == 7) {  // It's  #RRGGBB
2319             long red, green, blue;
2320             red = green = blue = 0;
2321             spec.Mid(1,2).ToLong(&red,   16);
2322             spec.Mid(3,2).ToLong(&green, 16);
2323             spec.Mid(5,2).ToLong(&blue,  16);
2324
2325             **obj = wxColour(red, green, blue);
2326             return True;
2327         }
2328         else {                                       // it's a colour name
2329             **obj = wxColour(spec);
2330             return True;
2331         }
2332     }
2333     // last chance: 3-tuple of integers is expected
2334     else if (PySequence_Check(source) && PyObject_Length(source) == 3) {
2335         PyObject* o1 = PySequence_GetItem(source, 0);
2336         PyObject* o2 = PySequence_GetItem(source, 1);
2337         PyObject* o3 = PySequence_GetItem(source, 2);
2338         if (!PyNumber_Check(o1) || !PyNumber_Check(o2) || !PyNumber_Check(o3)) {
2339             Py_DECREF(o1);
2340             Py_DECREF(o2);
2341             Py_DECREF(o3);
2342             goto error;
2343         }
2344         **obj = wxColour(PyInt_AsLong(o1), PyInt_AsLong(o2), PyInt_AsLong(o3));
2345         Py_DECREF(o1);
2346         Py_DECREF(o2);
2347         Py_DECREF(o3);
2348         return True;
2349     }
2350
2351  error:
2352     PyErr_SetString(PyExc_TypeError,
2353                     "Expected a wxColour object or a string containing a colour name or '#RRGGBB'.");
2354     return False;
2355 }
2356
2357
2358 bool wxColour_typecheck(PyObject* source) {
2359
2360     if (wxPySimple_typecheck(source, wxT("wxColour"), 3))
2361         return True;
2362
2363     if (PyString_Check(source) || PyUnicode_Check(source))
2364         return True;
2365
2366     return False;
2367 }
2368
2369
2370
2371 bool wxPoint2D_helper(PyObject* source, wxPoint2D** obj) {
2372     // If source is an object instance then it may already be the right type
2373     if (wxPySwigInstance_Check(source)) {
2374         wxPoint2D* ptr;
2375         if (! wxPyConvertSwigPtr(source, (void **)&ptr, wxT("wxPoint2D")))
2376             goto error;
2377         *obj = ptr;
2378         return True;
2379     }
2380     // otherwise a length-2 sequence of floats is expected
2381     if (PySequence_Check(source) && PySequence_Length(source) == 2) {
2382         PyObject* o1 = PySequence_GetItem(source, 0);
2383         PyObject* o2 = PySequence_GetItem(source, 1);
2384         // This should really check for floats, not numbers -- but that would break code.
2385         if (!PyNumber_Check(o1) || !PyNumber_Check(o2)) {
2386             Py_DECREF(o1);
2387             Py_DECREF(o2);
2388             goto error;
2389         }
2390         **obj = wxPoint2D(PyFloat_AsDouble(o1), PyFloat_AsDouble(o2));
2391         Py_DECREF(o1);
2392         Py_DECREF(o2);
2393         return True;
2394     }
2395  error:
2396     PyErr_SetString(PyExc_TypeError, "Expected a 2-tuple of floats or a wxPoint2D object.");
2397     return False;
2398 }
2399
2400
2401 //----------------------------------------------------------------------
2402
2403 PyObject* wxArrayString2PyList_helper(const wxArrayString& arr) {
2404
2405     PyObject* list = PyList_New(0);
2406     for (size_t i=0; i < arr.GetCount(); i++) {
2407 #if wxUSE_UNICODE
2408         PyObject* str = PyUnicode_FromWideChar(arr[i].c_str(), arr[i].Len());
2409 #else
2410         PyObject* str = PyString_FromStringAndSize(arr[i].c_str(), arr[i].Len());
2411 #endif
2412         PyList_Append(list, str);
2413         Py_DECREF(str);
2414     }
2415     return list;
2416 }
2417
2418
2419 PyObject* wxArrayInt2PyList_helper(const wxArrayInt& arr) {
2420
2421     PyObject* list = PyList_New(0);
2422     for (size_t i=0; i < arr.GetCount(); i++) {
2423         PyObject* number = PyInt_FromLong(arr[i]);
2424         PyList_Append(list, number);
2425         Py_DECREF(number);
2426     }
2427     return list;
2428 }
2429
2430
2431 //----------------------------------------------------------------------
2432 //----------------------------------------------------------------------
2433
2434
2435
2436